CTC Union MX262 Series Manuel utilisateur
MX262 Series Switch BoxMX262 Series Switch Box
12 Sensor Inputs12 Sensor Inputs
Product ManualProduct Manual
2
• Introduction...................................................................3
• Product Description...........................................................3
• Product Dimensions & Diagram................................................4
• Mounting Instructions .........................................................5
• Conduit Entry .................................................................6
• Grounding ....................................................................7
• Installation of Sensor/Signal Input Cable.......................................8
• Post-Installation Testing..................................................... 11
• Warranty & Return Information .............................................. 13
T C
3
I
CTC Termination Box solutions allow for the monitoring of remotely-mounted
vibration sensors, which would be otherwise restricted to human access due to
safety considerations.
MX262 Series Termination Box Overview: Four to 12 sensor inputs (four to 12
measurement channel outputs), stainless steel slope top enclosure
The MX262 Termination Box is a common cable connection point for bringing
multiple sensor cables into a central location for routine data collection with
portable data collectors.
The MX262 Termination Box is used to convert the two-conductor input wiring
of up to 12 remotely installed accelerometers or piezo velocity sensors to a
dedicated BNC for each sensor. Wiring from each sensor is connected to the
outputs via quick-connect or screw terminal blocks. Each terminal block includes
inputs for positive, negative and shield.
Rated for NEMA 4X (IP66), the MX262 can withstand harsh environments
including temperatures ranging from -58°F to 180°F (-50°C to 82°C). The box is
also resistant to hose-directed fluid and corrosion. A key latch is installed on the
door allowing the box to be sealed from the elements when not in use.
Note: The MX262 Stainless Steel Switch Box is internally grounded.
4
P D
Measurement
Location Card
Terminal Strip
Inputs
BNC
Output
Connector
Figure 1. Dimensions
Figure 2. Diagram
Front View Side View
5
M I
MX262 Series Switch Boxes are supplied with mounting brackets attached.
Note: If you have purchased a switch box without cable entries provided, you
should add your own entry prior to mounting the switch box. CTC does not
recommend drilling holes in the top of the enclosure due to access and moisture
concerns.
Mounting
Holes
0.31 in./7.95 mm
Figure 3. Switch Box Rear View
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If you are running conduit to your enclosure, ensure the conduit cable entry is
located at the bottom of the enclosure when mounted.
Note: To ensure moisture will not flow into the enclosure, a hole should be drilled
at the lowest point in the conduit to provide drainage for any moisture.
Figure 4. Conduit Entry for Switch Box
Correct
Drill Drain
Hole Here
7
G
Ensure the shield ground wire on the MX262 Series Termination Box is grounded
to earth ground.
A. Mounting to Earth Ground
When mounting MX262 Series Termination Boxes to earth ground (such as
an I-Beam), no additional steps are necessary, as the enclosure is grounded
internally.
Figure 5. Switch Box (MX262) Earth Ground
8
B. Mounting to Non-Grounded Structure
When mounting the switch box to a non-grounded structure, ensure the shield
ground wire or customer-supplied ground wire is tied to a source of earth ground.
S I
Installation of Sensors/Signal Input Cable
1. Feed blunt-cut end through the cable entry at the bottom of the switch box.
Note: It is recommended that cables are marked on both ends.
For cord grip cable entry, take off the cord grip cover with bushing and run cable
into enclosure, hand-tighten cord grip cover to base to prevent damage of cord
grip.
Figure 6. Ground Wire Placement
9
1. Strip outer jacket of cable back 1¼ in. and remove all of the shielding.
2. Separate the internal wires from the shield and twist the shield.
3. Strip red and black insulation back ¼ in.
Figure 8. Bottom View
Figure 7. Front View
Figure 9. Stripped Wire
(-) Common
Shield/Drain Wire
(+) Signal/Power
4. Locate the appropriate plug, identified by channel number, remove the plug and
install the wires using a small flathead screwdriver. Push plug back into location.
Orientation is as follows:
a. Red insulated conductor wire is connected to (+).
b. Black insulated conductor wire is connected to (-).
c. Shield drain wire is connected to ground (GND).
d. Depress selected position button to open terminal for respective wire (may
require a mini athead screwdriver).
10
5. Insert plug into the appropriate PC board connector and double check to ensure
that the cable is going to the correct channel.
6. Mark the Measurement Location Card located on the inside front cover with a
description of each measurement location.
Figure 10. Field Wiring for Two-Conductor Sensor Inputs
SENSOR 6
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
+
-
GND
SENSOR 5SENSOR 4SENSOR 3SENSOR 2SENSOR 1
SENSOR 12SENSOR 11SENSOR 10SENSOR 9SENSOR 8SENSOR 7
Sensor Inputs
Red = Positive
Black = Common
Grey = Shield (Ground)
Inputs
Inputs
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